Genotoxicity in herring gulls (Larus argentatus) in Sweden and Iceland

Mutation Research
Halldora SkarphedinsdottirLennart Balk

Abstract

Adult and young herring gulls (Larus argentatus) in Sweden and Iceland were investigated with respect to DNA adducts, analysed with the nuclease-P1 version of the (32)P-postlabelling method, and micronucleated erythrocytes. Three important aims were: (1) to estimate the degree of exposure to genotoxic environmental pollutants in the Baltic Sea area and Iceland, (2) to evaluate the utility of the investigated biomarkers in birds, and (3) to investigate if there was any relationship between genotoxic effects and thiamine deficiency. The results demonstrate that both Swedish and Icelandic herring gulls are exposed to genotoxic pollution. Urban specimens have higher levels of DNA adducts than rural specimens, but background exposure to genotoxic environmental pollutants, such as PAHs, is also significant. In the herring gull the general level of DNA adducts in the liver seems to be higher than in fish. DNA adducts were most abundant in the liver, followed by the kidney, intestinal mucosa, and whole blood, in decreasing order. The frequency of micronucleated erythrocytes was probably slightly elevated in all the investigated sites, reflecting a significant background exposure. The level of DNA adducts was unrelated to the frequency ...Continue Reading

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Citations

Jan 1, 2013·Environmental Science and Pollution Research International·Ola WestmanMagnus Engwall
Jan 5, 2014·Environmental Science and Pollution Research International·Ola WestmanMagnus Engwall
Feb 24, 2015·Ecotoxicology and Environmental Safety·Camilla Queiroz BaesseCeline de Melo
Jul 6, 2014·The Science of the Total Environment·Hrönn Ólína JörundsdóttirHalldór Pálmar Halldórsson
Oct 1, 2016·Environmental Science and Pollution Research International·Arnoldo A M QueroNora B M Gorla
Nov 12, 2017·Environmental Science and Pollution Research International·Denise Braga Gomes de FariaAline Sueli de Lima Rodrigues
Aug 18, 2020·Environmental Science and Pollution Research International·Martín G Frixione, Ricardo Rodríguez-Estrella
Jul 16, 2020·Environmental Science and Pollution Research International·Vanessa Fonseca GonçalvesCeline de Melo

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